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H Class Transfer Rooftop Chain H78A, H78B, H130, H131, H138

“H” Class Transfer Chain is often referred to as “rooftop” or “camelback” chain. It is designed to carry heavily concentrated loads, such as lumber, boxes, barrels and crates. It is usually intended for operation in troughs, in two or more parallel strands, with only the tops of the links protruding.

H Class Transfer Rooftop Chain H78A, H78B, H130, H131, H138

WLY Transfer Chain is available in two types: "H" Class Transfer Chain and Combination Transfer Chain. "H" Class Transfer Chain includes those numbered H78A, H78B, H130, H131, and H138. All "H" Class Transfer Chain is available only in riveted construction. "H" Class Transfer Chain numbered H 78A, H 130, and H 131 is made with peaked roofs. Chain numbers H138 and H78B have flat roofs.
Combination Transfer Chain includes those numbered C55A, C55B, and C55D. It is available only in riveted construction with peaked roofs.
Both types of these transfer chains, referred to at times as "rooftop" and "camelback" chains, are designed to carry heavily concentrated loads such as lumber, boxes, barrels, and crates. They are usually intended for operation in troughs in two or more parallel strands.with only the tops of the links protruding.

H Class Transfer Rooftop Chain

H Class Transfer Roof Top Chains Specifications

Rooftop transfer chains are special chains that are used to move bulk materials. They are also referred to as camelback chains or just transfer chains. This type of chain was introduced just after the invention of H-type mill chains to enhance bulk material handling and transferring in the aggregate and forestry industry. Presently, the rooftop transfer chain is found in almost any industry and applications requiring a high-strength conveyor transfer chain.

H Class Transfer Roof Top Chain

Chain No. Pitch Diameter of Pin (Dp) Height of Sidebar (H) Diameter of Barrel (Db) Max. Allowable Sprocket Face (E) Overall Height (P) Max. Recommended Working Load Avg. Ultimate Strength Load
H78A 2.609 0.500 1.00 0.88 1.12 1.69 2,820 lb 20,800 lb
H78B 2.609 0.500 1.00 0.88 1.12 1.69 2,820 lb 20,800 lb
H130 4.000 0.500 1.06 1.00 1.00 1.69 2,440 lb 18,200 lb
H131 4.000 0.625 1.56 1.25 1.62 2.25 4,700 lb 29,900 lb
H138 4.000 0.500 1.06 1.00 1.00 1.69 2,440 lb 19,500 lb


Uses of H Class Transfer Rooftop Chain

The primary purpose of a rooftop transfer chain is to function in troughs, usually on transfer conveyors with two or more parallel stands. These chains are designed with bevel tops on the links, which allow for transverse loading and unloading. They are commonly referred to as "camelback chains" and are favorable for their ability to carry heavy, concentrated loads, transport bulk materials, and products such as lumber, boxes, barrels, and crates within industries. It is important to note that these chains only operate in one direction and should not be installed in reverse. The speed of operation is dependent on the carried load and frequency, but the suggested speed is generally 100 feet per minute.

Transfer Rooftop Chain Application Transfer Rooftop Chain Application
Forest Pulp and Paper

Sprocket for Rooftop Transfer Chain

We offer many types of rooftop chains in various sizes designed to handle different load capacities depending on the kind of forestry, packing, manufacturing, and building materials. What differentiates rooftop chains from other types of chains is that with a rooftop chain, the top piece or “roof” protects your products and equipment while reducing the sliding of material in conveyor lines.

Along with our chains, we also offer various sprockets for keeping your project moving and your operations productive.


H Class Transfer Roof Top Chain

Additional information



pruduct quality report

Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Eight reasons to choose us:


1. Perfect service system and after-sale protection.
2. Quality problems will be solved within 24hours.
3. One-to-one customer service tracking processing.
4. Companies carry out the ERP management, improve enterprise fast response.
5. Quality assurance, one year warranty.
6. Supporting professional matched other equipments.
7. The company has more than one product testing units, the implementation of ISO9001: 2015.
8. Unique development and design capabilities to meet the needs of special-purpose equipment manufacturing.


Five Core strengths:


1. The first domestic independent R & D manufacturer and 22 years of professional manufacturing.
2. Casting exquisite, beautiful, practical and durable.
3. Complete specifications, cost-effective and spot supply.
4. Independent research and development, special specifications can be customized.
5. Selected materials, high-tech treatment, up to the international standard test.

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port


Q: Are you trading company or manufacturer ?
A: Our group consists in 3 factories and 2 abroad sales corporations.

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: How long is your delivery time ? What is your terms of payment ?
A: Generally it is 40-45 days. The time may vary depending on the product and the level of customization. For standard products, the payment is: 30% T/T in advance ,balance before shipment.

Q: What is the exact MOQ or price for your product ?
A: As an OEM company, we can provide and adapt our products to a wide range of needs.Thus, MOQ and price may greatly vary with size, material and further specifications; For instance, costly products or standard products will usually have a lower MOQ. Please contact us with all relevant details to get the most accurate quotation.